Insulating drainage board



FIG. 1 is a front perspective view of one embodiment of the insulatingdrainage board in accordance with my design;

FIG. 2 is a top view of the insulating drainage board of FIG. 1;

FIG. 3 is a side view of the insulating drainage board of FIG. 1;

FIG. 4 is an end view of the insulating drainage board of FIG. 1;

FIG. 5 is a back view of the insulating drainage board of FIG. 1;

FIG. 6 is a front perspective view of another embodiment of theinsulating drainage board in accordance with my design;

FIG. 7 is a top view the insulating drainage board of FIG. 6;

FIG. 8 is a side view of the insulating drainage board of FIG. 6;

FIG. 9 is an end view of the insulating drainage board of FIG. 6; and,

FIG. 10 is a bottom view of the insulating drainage board of FIG. 6.

The ornamental design for an insulating drainage board, as shown and described. 